amplitude
//ˈæm.plɪ.tjuːd//
Noun
amplitudeSingular
amplitudesPlural
1
The maximum extent of a vibration or oscillation, measured from the position of equilibrium.
The amplitude of the sound wave determines its loudness.
2
The magnitude or extent of something; largeness or fullness.
The amplitude of his knowledge impressed everyone at the conference.
3
In astronomy, the angular distance of a celestial object from the true east or west point of the horizon at rising or setting.
The astronomer calculated the amplitude of the star as it rose above the horizon.